Which of the following sentences contains a dependent clause?

1. My mother, who never wastes anything, rinsed and saved the take out boxes.
   
   
2. We were running late, and we had to skip stopping by the post office.
   
   
3. I had never been to New York before this spring.
   
   
4. You should take a umbrella to the game.
   
   

I think that the answer is either 1 or 2.